Non-refillable bottle.



PATBNTED MAY 24, 1904.

G. ZISTERQ NON-RBFILLABLB BOTTLE. APPLICATION FILED JAN. 11l 1904.

I0 MODEL.

III I A :ll

Patented May 24, 1904.

PATENT OFFICE.

GEORGE ZISTER, OF CHICAGO, ILLINOIS.

NON-REFILLABLE BOTTLE.

SPECIFICATION forming part of Letters Patent Nb. 760,836, dated ma 'za, 1904. I I Application filed January 11, 1904. Serial No. 188,581. (No model.)

To all whom, it may concern:

Be it'known that I, GEORGE ZISTER, a citizen of the United States, residing at Chicago,

1 ing is a specification.

- end of the stem 9 and is provided with anum- This invention relates to non-refillable bot tles' and like vessels, and has for its object to provide 'a simple device to be placed in the neck of a bottle which will not prevent the liquid contents from being freely discharged therefrom, but will prevent the bottle from being fraudulently refilled. v

In the drawings, Figure 1 is a sectional elevation-of the upper part of a bottle embodying the improved features. Fig. 2 is a plan of a perforated diaphragm to be inserted in the neck part of a bottle, and Fig. 3 is a View in perspective of a perforated diaphragm and valve.

A represents the body of a bottle, and B the neck part thereof,'which is provided interiorly with an annular groove 4 for the retention therein of a stationary diaphragm 5, provided throughout its surface with numerous perforations 6. This diaphragm has teeth 7 formed.

around the edge thereof, which are adapted to be curved or rolled inward and under and fill the groove 4, as shown ate, with a spring action in'holding the diaphragm in place against removal.

A round cup-shaped Valve 8 is mounted on the lower end of an integral stem 9 and closely fits theinclosing wall of the neck B, as shown in Fig. 1. This valve is of flexible material, preferably of rubber, and gradually grows thinner from the center outward and vanishes to an elastic thin edge 10, that normally bears closely against the inclosing interior neck-wall. A second diaphragm 11 is formed on the upper ber of perforations 12, which do not register with the perforations 6 in the upper diaphragm, and therefore prevents the insertion of an instrument or tool to fraudulently interfere with the valve. The edge of diaphragm 11 rests on an annular shoulder 13 and supports the valve controlling the discharge-passage in the suspended position shown.

The valve being spherical on the under or bottom side only leaves the. thin edge 10 in contact with the surrounding neck-wall, so that when the bottle is tilted to a pouring-out position the pressure and weight of the liquid contents will cause the thin edge of the valve to collapse inward and open a passage for the liquid to freely flow out through the perforated diaphragms. -When the bottle is returned to a vertical position and the outward flow of the liquid stopped, the thin bearing edge of the valve springs back and closes the -an attempt be made to fraudulently refill the bottle. The greater the pressure on the upper side of the valve the more closely the same will adhere to the wall-surface.

annular shoulder, of a cup-shaped valve located in the passage in the neck and having a stem formed integral therewith, and a perforated diaphragm mounted on the upper end of said stem and supported from said shoulder. In testimony whereof I have signed my name to this specification in the presence'of two subscribing witnesses.

GEORGE Z'ISTER.

Witnesses:

L. B. OoUPLAND,

EDWARD I. BUCKLIN.

passage against an inflowing volume should Having thus described my invention, what with the neck part provided interiorly with an 

